Adaptive Protection Scheme for a Real-World Microgrid with 100% Inverter-Based Resources

Patel, Tejas; Brahma, Sukumar; Hernández-Alvídrez, Javier; Reno, Matthew J.

doi:10.1109/kpec47870.2020.9167527

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…This is highly communication dependent and follows a decentralized architecture. [71,72] T. Patel et al [73] propose an adaptive scheme for a real world microgrid based on a microgrid being divided into protection zones and relays having different settings for different disturbance direction. In the work by A.Oudalay and Antonio Fidigatti, [74] the recommended protection scheme apprises the microgrid's relay setting through detecting variations in configuration of the system by using communicational infrastructure in addition to digital relaying.…”

Section: Adaptive Protection Schemementioning

confidence: 99%

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

Srinivas¹,

Modi²

2022

ECS Trans.

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For the greater part of a century, the world has moved to sustainable energy production, with increased dependence on renewable energy resources to meet growing energy demand. Reserves of conventional sources are rapidly depleting, with an environmental crisis due to profligate consumption. Distributed generation through renewable sources and microgrids have proved as sustainable alternatives. Microgrids provide versatile topologies with dispersed generation and provision for expansion. However, the nonconventionality of microgrids pose challenges and the conventional control and protection strategy have proven unsuitable. This paper attempts to be a review of microgrids, challenges, and existing protection schemes. The first segment of this paper presents the definition and overview of the microgrid market scenario. The next segment discusses microgrid classification and control strategies, following which challenges, and protection schemes are reviewed. The paper concludes with an overview of relay coordination, optimization algorithms, and an outline of few international microgrid standards and codes.

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Section: Adaptive Protection Schemementioning

confidence: 99%

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

Srinivas¹,

Modi²

2022

ECS Trans.

View full text Add to dashboard Cite

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“…Thus, conventional protection methods may lose their reliability. For example, the unique current limiting control may cause the malfunction of overcurrent protection schemes during AC faults [128]. Moreover, the dual-sequence control of GFM converters also affects the correctness of the negative-sequence protections, such as the negative-sequence component suppression control [129].…”

Section: B Ac Fault Protection In Gfm Converters Interfaced Gridmentioning

confidence: 99%

Grid Forming Converters in Renewable Energy Sources Dominated Power Grid: Control Strategy, Stability, Application, and Challenges

Zhang

Xiang

Lin

et al. 2021

Journal of Modern Power Systems and Clean Energy

158

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The renewable energy sources (RESs) dominated power grid is an envisaged infrastructure of the future power system, where the commonly used grid following (GFL) control for grid-tied converters suffers from lacking grid support capability, low stability, etc. Recently, emerging grid forming (GFM) control methods have been proposed to improve the dynamic performance and stability of grid-tied converters. This paper reviews existing GFM control methods for the grid-tied converters and compares them in terms of control structure, grid support capability, fault current limiting, and stability. Considering the impact of fault current limiting strategies, a comprehensive transient stability analysis is provided. In addition, this paper explores the typical applications of GFM converters, such as AC microgrid and offshore wind farm high-voltage direct current (OWF-HVDC) integration systems. Finally, the challenges to the GFM converters in future applications are discussed.

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“…In addition, the relative relay location with respect to PV farms can lead to pronounced insensitivity to certain fault types [4]. An analysis of a real-world OC protection scheme and its shortcomings in a feeder with significant distributed generation is provided in [5].…”

Section: Introductionmentioning

confidence: 99%

Protection Analysis of a Traveling-Wave, Machine-Learning Protection Scheme for Distributions Systems With Variable Penetration of Solar PV

Jimenez-Aparicio,

Patel,

Reno

et al. 2023

IEEE Access

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This work provides a detailed protection analysis of a fast, Traveling-Wave (TW), Machine-Learning (ML), local, non-directional, economic, and setting-less protection scheme. The goal is to provide an objective evaluation of how a data-driven TW protection scheme would perform when deployed on a power distribution system as a faster alternative to over-current (OC) protection. Fault simulations consider scenarios from none to high-penetration of renewable energy resources to show its suitability for future applications on Distributed Energy Resources (DER)-dominated distribution systems. A modified IEEE 34 node system with solar Photovoltaic (PV) in multiple locations is modeled in PSCAD/EMTDC. The TW, ML method's protection scheme is built upon an efficient signal-processing stage, using the Discrete Wavelet Transform, and scaled-down Random Forest models that classify the fault location into several protection zones. The analysis is focused on the quantification of the sensitivity and selectivity of the proposed protection scheme. Furthermore, estimations of the false trip probability and average unnecessary load loss are included, as these events may occur due to the misoperation and miscoordination of the proposed datadriven, signal-based relays. Results show high TW detection rates and fault location accuracies, which cause a small and bounded percentage of imprecise fault locations and unnecessary load loss. Similarly, the same IEEE 34 node system is modeled in OpenDSS and a custom OC protection scheme is designed. The comparison between both methods leads to the conclusion that TW, ML methods can be a significantly faster aid to traditional protection.

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Adaptive Protection Scheme for a Real-World Microgrid with 100% Inverter-Based Resources

Cited by 10 publications

References 13 publications

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

Grid Forming Converters in Renewable Energy Sources Dominated Power Grid: Control Strategy, Stability, Application, and Challenges

Protection Analysis of a Traveling-Wave, Machine-Learning Protection Scheme for Distributions Systems With Variable Penetration of Solar PV

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